Improvement in looms



SAMUEL BOORN.

Improvement in Looms.

NO. "4,756. Patented May i 6,187|

Winewg; $300770 fidtlti time SAMUEL BOORN, OF LOWELL, MASSACHUSETTS.

Letters Patent No. 114,756, dated May 16, 1871.

IMPROVEMENT IN LOOMS.

The Schedule referred to in these Letters Patent and making part of the lame.

To all persons to whom these presents may come Be it known that I, SAMUEL Boonn, of Lowell, of the county of Middlesex and State of Massachusetts, have made a new and useful Invention having'referenoe to Looms for Weaving Cloth or Fabrics; and do ,hereby declare the same to be fully described in the following specification and represented in the accompanying drawing, of which-- Figure l is a front elevation,

Figure 2 a side view, and

Figure 3 a transverse section of my invention as ap-v plied to the frame and lay of a loom.

The object of my invention is to relieve the shuttle of most of the pressure of the binderpreparatoryto the expulsion of such shuttle from a box of the lay,

and at the proper time, or when the shuttle has fully entered a box, to throw the full force of the binder upon the shuttle so as to estop it and prevent it from rebounding.

With my invention the period of application of the extra pressure on the binder to estop the shuttle is made entirely dependent on the arrival of the shuttle fully into the box.

Thus it will be seen that with my said invention I am enabled to effect a great reduction of power to produce the throwing of the shuttle, and, as a consequence, I not only run the loom at a less expense, but prevent much of the wean and tear of the mechanism that resultsfrom the casting of the shuttle under the full or stopping pressure 'of the binder upon it. In carrying outniy invention 1 have therefore combined withja loom a mechanism, to be hereinafter described, by which economical results, as hereinbefore mentioned, are attainable.

In the drawing- A denotes the loom-frame, and- B the lay.

The said lay is to be supposed to be furnished with shuttle-boxes, arranged with or applied to it as customary in looms, andeach. of such boxes is to have a shuttle-binder, which in the drawing may be considered as arranged at G or O.

'The protector-rod or shaftis shownat D as pivoted to the lay, and furnished, as usual, with two arms, E E, to extend upward from it and bear against the binders.

A light spring, F, affixed to the lay presses againstone of the said arms so as to force the two against the binders with the degree of power necessary to preservelthe shuttle in its proper direction while being driven from either shuttle-box.

The extra spring by whose power the shuttle is to be estopped and prevented from rebounding in the box is shown at G. It is a reserved power, brought into action when necessary to'stop theshuttle, and

thrown out of action afterward and prior to the next passage of the shuttle out of the box, in order that the shuttle, during its flight out of the box, may be relieved from such stopping power, and be subjected only to that pressure of the binder which may be due to the elastic force of the spring F.

The said spring G is a coiled or helical spring en- 'compassing a journal, H, projecting down from the race-beam of the lay.

The upper end of the spring G is fixed toa lover or arm, I, which turns horizontally onthe said journal.

The lower end of the spring is' fixed in a ratchetwheel or head, K, applied to the journal or spindleH so as to be capable of being revolved therein.

A pin, a, going through the journal so as to engage with the ratchet-wheel, serves to stop the said wheel. The purpose of the-wheel and pin is to regulate the degree of tension of the spring.

There are pivoted to one of the swords of the lay two hooked levers, L M, they being arranged and formed as represented, their shorter and hooked arms resting on the spring arm I.

Furthermore, there extend down from the protector- ,rod or shaft D two fingers, b c, the longer one of which projects down in front of the arm I. The shorter finger does notreach to the said arm, this latter finger being to act against a stud or pin, d, extended from the hook of the inner of the two hooked levers L M. There are two abutments or stops, N O, afiixed to the loom-frame and arranged as represented. These abutments may he applied so as to be adjustable as occasion may require.

During each beating up or advance of the lay, and

preparatory to each throw of the shuttle, the arm I will be borne against the upper-abutment N, so as to press the said arln away from the longer finger b, and

thereby relieve such finger from the pressure of the said spring arm I. The shuttle-binder then will be relieved of all the pressure of the spring G, and, consequently, during the next throw of the shuttle the shuttle-binder will be subjected only tothe pressure of the light spring F.

While the arm 1 maybe pressed back during advance of the lay, such arm will be caught and held in position by the book of the outer hooked lever L. This position of the arm will be maintained during the retreat of the lay until the tail of the hooked lever may be borne against the lower abutment, when the said lever will be moved out of engagement with the arm I; The arm will next be caught by the inner hooked lever, and will be held by it until the shuttle-may have entered the box sufiiciently for being stopped.

When the shuttle has so entered the box to receive it, such shuttle, by being driven against-the binder of such box, will force'such binder outward sufificicntly I The combination of the spring G, the arm I, the two hooked levers L M, the abutinents N O, the fingers b 0, and stud d, or the equivalent of such meehanism, with the spring F, shaft D, and arms E E, all being arranged substantially in manner and to operate as and for the object or purposes as hereinbefore specified.

\Vitnesses R. H.' EnDY, J. R. SNOW.

SAMUEL BOORN. 

